Geth Alarms

August 09, 2021

Geth Alerts

A community-curated collection of alerts for the Geth collector.

Chainhead header-block

This alert checks the difference of the variables chain_header_block chain_head_header. If the node is synced, they should be the same, thus the difference should be 0.

#chainhead_header is expected momenterarily to be ahead. If its considerably ahead (e.g more than 5 blocks), then the node is definetely out of sync.
 template: geth_chainhead_diff_between_header_block
       on: geth.chainhead
    class: Workload
     type: ethereum_node
component: geth
    every: 10s
     calc: $chain_head_block -  $chain_head_header
    units: blocks
     warn: $this != 0
     crit: $this > 5
    delay: up 5s